Our Rug size calculator is a tool that helps you determine the appropriate size of a rug for a particular space in your home.
It is a simple and easy-to-use tool that can save you time and hassle when trying to find the perfect rug for your living room, bedroom, or any other room in your home.
When choosing a rug for your home, it is important to consider the size of the room and the furniture that will be placed on the rug.
A rug that is too small will look out of place and will not provide the desired visual effect.
On the other hand, a rug that is too large will dwarf the room and make it look smaller than it actually is.
Rug Size Calculator
The rug size calculator uses a simple formula to determine the appropriate size of a rug for a particular space.
The formula is:
RS = (L + 8), (W + 8)
Where RS is the size of the rug in length and width (inches), L is the length of the furniture (inches), and W is the width of the furniture (inches).
To calculate the rug size, simply add 8 inches to the length and 8 inches to the width of the furniture.
For example, if you have a living room with a sofa that is 8 feet long and 6 feet wide, the appropriate size for a rug would be:
RS = (8 feet x 12 inches/foot + 8 inches), (6 feet x 12 inches/foot + 8 inches) = 96 inches by 72 inches.
This means that a rug that is 96 inches by 72 inches would be the perfect size for this particular living room.
Using a rug size calculator is a great way to ensure that you choose the right size rug for your space.
It eliminates the need to guess or estimate the size of a rug and eliminates the risk of buying a rug that is too small or too large.
When using a rug size calculator, it is important to keep in mind that the size of the rug should be proportionate to the size of the room and the furniture that will be placed on it.
A smaller rug in a large room will look out of place, while a larger rug in a small room will dwarf the space.
It is also important to consider the layout of the room when choosing a rug.
If the room has a lot of furniture, it may be best to choose a rug that is slightly larger than the furniture to ensure that it complements the space.
If the room has minimal furniture, a smaller rug may be more appropriate.
When choosing a rug, it is also important to consider the material of the rug.
Different materials have different properties and can affect the look and feel of a room.
For example, a wool rug will provide a cozy and warm feel, while a silk rug will provide a more elegant and sophisticated look.
In summary, a rug size calculator is a useful tool that can help you determine the appropriate size of a rug for a particular space in your home.
It eliminates the need to guess or estimate the size of a rug and eliminates the risk of buying a rug that is too small or too large.
When using a rug size calculator, it is important to keep in mind the size of the room, the layout of the room, and the material of the rug.
With these factors in mind, you can choose a rug that complements your space and enhances the overall look and feel of your home.
Below is our standard guide if you can’t use the tool or don’t get the point.
Don’t get confused by two guides. Just follow the calculator guide or read the standard guide.
Standard Guides:
Standard Rug Sizes

Most of the rugs come in a standard size to fit into certain interiors efficiently.
These common sizes are usually intended to match standard construction guidelines.
It means knowing the common rug size is the initial step to picking the right rug size.
Below are a few examples of standard rug sizes in feet:
- 3 feet x 5 feet
- 5 feet x 8 feet
- 8 feet x 10 feet
- 9 feet x 12 feet
- 12 feet x 15 feet
Typically, manufacturers maintain 3 to 4-inch differences between standard sizes. The following are some category-wise standard rug sizes:
What Size Rug For Living Room?
Large
Usually 9′ x 12′ ft, 8′ x 10′ ft or above size rugs are considered as large. These rug sizes are huge and come with pretty much the same layout setup.
Large-sized rugs are usually placed in the dining room, lounge, and bedrooms.
Medium

Medium rug sizes like 5’x8′ and 6’x9′ rugs are the most popular sizes as they aren’t very small or large.
In addition, medium-sized rugs are perfect for placing anywhere in the house except in the bathroom or kitchen.
Small
The rugs that are 4′ x 6′, 2′ x 3′, 3′ x 5′ or below are considered the small sizes. These rug sizes are ideal for placing in kitchens, bathrooms, or doormats.
Runners’ Rugs
Rugs that have a much higher length than width are considered runner rugs.
These rugs are commonly used in kitchens, bedsides, hallways, and to decorate staircases. Some common runner rugs are 2′ x 8′, 2′ x 10′, 2′ x6′, 3′ x 8′, and 3′ x 10′.
Round Rug Sizes

Round rug sizes add a unique dimension to the house’s appearance. If you place them in the right place, the round rug size can steal 1/3 of the interior decoration.
Some common round rug sizes are 10′ x 10′, 8′ x 8′, 6′ x 6′, and 4′ x 4′.
Key Considering Factors For Sizing A Rug
Sizing a rug greatly depends on these three main aspects:
Furniture Placement
The placement of furniture largely impacts the rug’s needs. The reason is that the rug size required for layout varies.
For example, you may require different rug sizes for the same bedrooms, living rooms, and dining rooms based on furniture placement.
A general rule of thumb is that to find a rug size for the living room that covers the room’s seating area and leaves a one-inch berth on either side of the furniture.
But remember, the exact rug size depends on the furniture’s layout.
Furniture Size

Apart from the placement of the furniture, its size also plays a great role. Large furniture, like dining tables or sectionals, encourages using larger rugs.
Conversely, smaller furniture is compatible with almost all-size rugs.
Room Size
Opposite to popular opinion, room size is the least determining factor when choosing the right rug size.
The reason is that, based on the configuration, the same room may require a different size rug. Hence, the two others are the key deciding factors.
Rug Size Depending On The Room
Though room size isn’t the top deciding factor for rug size, you can’t discount it completely.
Sometimes you can get a better idea of the right rug size simply by measuring the size of the room.
Some preferred rug sizes for certain size rooms are
Room Size | Rug Size |
---|---|
5 feet x 7 feet | 3 feet x 5 feet |
7 feet x 10 feet | 5 feet x 8 feet |
10 feet x 12 feet | 8 feet x 10 feet |
11 feet x 14 feet | 9 feet x 12 feet |
14 feet x 17 feet | 12 feet x 15 feet |
Let’s discuss this briefly!
Living Room
A 9’ x 12’ rug is considered the right size for any living room. This rug size can cover the entire furniture while leaving some room on either side for a unified appearance.
Despite this, it’s recommended to pick an area rug for the living room that can cover the coffee table and under the couch or furniture leg.
You can also use the same width of an area rug as the couch and leave 12 inches of flooring space.
Remember, the larger the area rug will be, the more it will impact and beautify the décor element.
Alternative To Rug Under Dining Table (Top 10 Options Added)
Dining Room

If you have a small dining room, use a 5’ x 8’ rug, while a 9’ x 12’ or 8’ x 10’ rug is preferable for a larger dining room, based on the dining room table size.
An 8′ x 11’ area rug is also commonly used for dining rooms.
You can also use the table and chair as guidelines, as they should fit comfortably on the rug even after pushing the chair out.
Despite this, leave some space so the area rug can extend beyond the chair’s back legs during seating. It’s important as the chair can wobble on the rough surface.
Bedroom
Whether you have a king or queen-size bed, use a 9’ x 12’ or 8’ x 10’ rug, while 5’ x 8’ rugs are suitable for full-size options.
If you are planning to put a rug under the bed, make sure it extends a few feet around the bed.
However, you can use an even number of rugs to frame the entire bed and expose it all around it. Roll runners are a preferable type of rug for bedrooms.
Measuring Rug Sizes And Area

Wondering how to measure rug size? The following are some base formulas to measure the area rug size for different shapes along with examples:
How Much Does A Persian Rug Cost
Rectangle Rug
If you have a 15 ft X10 ft dining room and want the right rug size for it, leave at least one foot of the width for fireplace extrusion.
In addition, you should have a 1.5-foot uncovered surface. So the calculation is:
Width= 16 – 1 – 1.5 = 13.5
Length = 12 – 0 – 1.5 = 10.5
It means the rug size should be 12.5 ft x 8.5 ft. It means the area the regular rug will cover is 141.75 sq. ft.
Square Rug

Wondering what size rug is for a 14 ft X 14 ft living room?
To determine the right rug size for your ccertain-sizedliving room, you have to deduct 22 feet from all sides to have some uncovered surface.
However, you don’t need to consider any space for fireplace extrusion when measuring rug size for the living room. The calculation is:
Width=14 – 0 – 2 = 12
Length =14 – 0 – 2 = 12
It means you’ll need a 12ft x 12ft rug size for your 14 ft X 14 ft living room, and the area rug will cover 196 sq. ft. area.
Runner Rug
Standard runner rugs typically come in 2 to 3 feet wide and are mainly used in kitchens and hallways.
To get the right custom kitchen runner rug, you have to multiply the floor length by your desired runner width.
For example, if you have a 14-ft kitchen floor and want to use a 3 ft runner rug, then your chosen runner rug should be 3 ft x 14 ft, and it will cover 42 sq. ft. area.
Circle Rug

Though circular rugs add a unique appearance to the floor, it’s a bit difficult to measure the right circular rug, unlike the above-mentioned shapes.
For example, if you have a 6 ft x 8 ft area where you want to place a circular rug, start memorizing the circular rug around the floor’s shorter side.
Its mean of 6 will be the considered value to determine the rug size.
And the calculation is:
Area = 3.14159 × (6/2) ^2
Where:
Pi= 3.14159.
So they require a circular rug size of 28.27 sq. ft. or 4070.88 sq. in. (Multiplying by 144).
Octagon Rug
Suppose you want to place an octagon rug on your 7 ft x 7 ft area.
The most convenient method to calculate is by multiplying the surface’s shorter side by 0.4142. This way, you’ll find one of eight sides of the octagon.
After that, you have to square it and multiply it by 4.8284 to get the exact octagon rug size.
The measurement is:
Area = (7×0.414)2×4.83= 40.56
It means you should get an octagon rug that can cover 40.56 sq. ft.
Following are some standard rug sizes available out there in terms of shape:
SL | Rectangle and oval rug | Square, circle & octagon rug | Runner rug |
---|---|---|---|
1 | 5′ × 3′ | 4′ × 4′ | 6′ × 2′ |
2 | 6′ × 4′ | 6′ × 6′ | 8′ × 2’ |
3 | 8′ × 5′ | 8′ × 8′ | 10′ × 2′ |
4 | 9′ × 6′ | 10′ × 10′ | 8′ × 2.5 |
5 | 10′ × 8′ | 12′ × 12′ | 10′ × 2.5′ |
6 | 12′ × 9′ | 14′ × 14′ | 12′ × 2.5′ |
7 | 14′ × 10′ | 16′ × 16′ | 10′ × 3′ |
8 | 15′ × 12′ | 12′ × 3′ | |
9 | 18′ × 12′ | 15′ × 3′ |
FAQs about the Rug Size Calculator
Should You Choose Too Large Or Small Rug Size?
When it comes to rug size, bigger is better as a few inches can make a massive difference in the room’s appearance. A too-small rug will make the room look too smaller and give it a choppy appearance. On the other hand, choosing a rug that is too large will cost you an extra penny and make the room look flawless.
Is 5×7 A Good Rug Size?
If you have an 8′ x 10′ or a little bit smaller room, using a 5′ x 7′ rug will give you the best result. This rug size perfectly fits under the coffee table or in front of the fireplace with a couple of comfy chairs. Considering the floor space, the legs of the sofa may sit on the 5′ x 7′ rug.
Does An Area Rug Make A Room Seem Smaller?
Yes, the rug can make the room look smaller but also bigger. The exciting benefit of the area rug is that it can change the room’s perception to achieve the desired aesthetic. If you place a rug on one side of a bigger room, it will give a sectional look and make the room look smaller. Despite an intricate pattern or garish color, a rug can also make the room smaller.
Final Words
A right-size rug not only offers an excellent base for the room and protects the floor with a comfortable feeling but also boosts the room’s décor.
This is where the rug size calculator plays its role and helps you get the most desired size rug for your certain size room to bring the best possible outcome.
Throughout the rug size calculator guide, we’ve described all the matters related to determining the right size rug without compromising the shape and mentioned some examples.
Hope now you can decide on the most accurate size rug for your needs by yourself.